Valve-cap.



R. R. BROWN.

VALVE CAP.

APPucAnoN FILED oci-14. me..

VALVE-CAP.

Specitication of Letters Patent.

llatented Jan. 29, 1915' Application filed october 14, 191e. sei-tai no. izaeze;

To all Lv/wm t may concern.'

Be it known that I, Rn? R. BROWN, a citizen 'of the United States, residing at Hamburg, in the county ot Fremont and State of Iowa, have invented new and useful Improvements in V alve-Caps, of which the following is a. specification.

This invention relates to improvements in valve caps for use in connection with valves upon pneumatic tires.

The primary object ot' the invention is to provide a valve cap which may be secured to the valve casing of a pneumatic tire withoutthe use of threads, or the like, and when applied thereto will serve to prevent foreign matter from gaining access to the valve arranged within the valve casing, or the escape of air from the tire through the valve casing when the valve therein is improperly seated.

Another object of the invention is to provide'a valve cap in which a lining of elastic material is arranged within the cap casing and has formed therein a longitudinally extending channel of less diameter than the valve casing with which the cap is to be connected so that when the valve casing is passed into said channel, and the threads on tl'.e valve casing become embedded in sai 'l lining thus tric-tionally connecting the valve cap with the valve casing so that the cap while held against casual-displacement from the valve casing may be easily and quickly removed or applied thereto as the occasion may require.

A `further object ot' the invention is to provide a valve cap et' the class described in which a liningis retained within a casing. by a cap adjustablv connected with said' casingand having contact with an annular flange at one end ot' said lining arranged between a shoulder on said casing and -ap so that upon. adinstinent et the cap upon said casing. the flange upon the lining will be compressed and the entrance tothe channel within the lining constrictcd thereby enabling the lining to obtain a firm grip upon a valve casing passed within said channel when the valve cap has beenin use for a considerable length of time.

i-Vith these and othenobjects in View, the invention resides in the novel combination and arrangement, of parts, which will be hereinafter described and particularly pointed out in the claim'l The preferred embodiment of the invenhollow tion han; been illustrated in the accompanying drawing, although no restriction is necessarily made to the precise details of construction therein shown, as changes, alterations, and modifications, within the scope of the claim may be resorted to when desired. v

Like characters of reference denote correspondingv parts throughout the several .views in the drawing, in which:

Figure 1 is aview in elevation of the im,- proved valve cap and showing the same applied to the 'valve of a pneumatic tire.

Fig. 2 isa verticaltransverse section on the line 2-2 of Fig. 1. Figz is ay View similar to Fig. 2 with .the

`valve cap removed from the valve casing.

Fig. 4 is a detailed perspective View of the expandible .lining and showing the same remlpved from the casing associated therewit t Referring now to the drawing in detail, the numeral 1 designates a valve of the type commonly used in connection with pneumatic tires and having an exteriorly threaded valve casing 2 upon which isarranged the improved valve cap '3 as shown in Figs. vl and 2" in the drawing.

The improved valve cap 3 comprises a cylindrical outer casing 4, which is provided with a circumferentially extending flange 5- adjacent its open end with the flange threaded for a portion of its length as indicated-by the numeral 6. Flange 5 provides the casing` interiorly thereof with a chamber 7 and an annular shoulder 8 adjacent theintersection of'said chamber with the bore 9 in said casing.

A {resto-conical shaped lining 10 formed from resilient `material is arranged in the bore 9 of the outer casing 4 and is provided with a closed end 11 and has formedupon its other-end a laterally extending and annular flange 12 of greater length than the flange 5 on the outer casing 4 which forms theehamber 7 inV which the flange 12' is arranged to contact with the shoulder .8. The Harige 12 ,has formed in its pe- 'through the fimged end e said lining and gradually decreasing in diameter toward the closed end theree, said channel being; slightly lees in diamete at iis open end than the diametei of the if'zive easing to which the vave 3 is te be applied.

it will be Seen Het through the piovision of 'die rueeenieal shaped lining 10, the lining for the gieaieipeiteii 01"' its Eenp 'ah is normaliy @graced from he jgelipiefzii Wadi of the bore 9 se that 'when a 'alive casing as shown in the drewig is armngefi wiehiu 'the chaume] '142, the -iining will be e2; Janded and caused te f'rieionaiiy gip ih@ valve easing thereby enabling; the valve Cap te be seemed the valve easing.

Te' iendef the valve cap more effective in preventing foreign matter 'fiom gainizeg ziccess to the-valve Within the Valve easi'i the channel le Within the lining 10 is tapeie'i. sdthat as the valve casing is yiced Wihin the lining iewmfd `die closed end ihei'eef he iiningq which has been expanden?. Within the bote@ ey if itien the valve easing will eecome eeiiieresse bein Je tessili? -ei She inner periph# Casin@ s' that 'he eine easing xviii become embe 10, illus ei'iabiing ehe "lining grip .upon die velveesxeii j the eseepe 0f e loiu wni'n me waive the valve if im i j@ ie @peli epd ef' he @kann casina mi ale@ 'i tween Cep and sumida@ 2/ Se enti-ance 1:0 eine bore le "ee cemezreei thereby enabling the Valve en@ 30 beused im connection with Valve easiiigs which Vai-j] im diamete' audwelso for a consid /ixiele length of 'time after the cha'mei 15,; iles 'become enf ieged through 10mg and continuous use the valve cap.

Then is desieii io .fijopy 'the valve Cep to ehe waive en p11 eumezie it' e, ehe Cep is ive amd fomee doifmweidly Valve /if i eiitel' M 10 ie smh im he valve will ne embedded in the lining., Elf ille ve Je in 'die Valve easing ee which the cap is applied. dees not seat propeiiy Within the casing, `the cap l5 may be edjused 'upon iange on he easing i mi eempees the f eiige i2 on ehe keine; l0 between the shoieiei 8 and the @ep l5 an@ thereby nei. only mme fumiy eures the the "valve, hut positiveiy iie escape of ail beweei the mive and the iiereen. Y

From me ieregeing; eeeeiptien? iiieeien. winzh i ie accompany 1g dei y is once @pine-ent thai; *if .d i v-.f'hiei is eef e ii? :me n e hout the use iireads,

we @elseif-feed file ilvelfien, .Ss new, le:

fj .L1 '1 ""e mee ei me emes aeeiieed, ai. em mg en eniegefi poiien ef meent one L9 e, ta fed eastle .lining Wii" n ".iigemeiiemg beyond mi iR-ged pere-io? i cumeeiiitieiigr e 'elmeg hungemi sami lining adjdceinf; its ie emi biting Within sind enla'fed pelin 'imige having; L eieumeremi groove 'hei mi and a Cep en' 0i' said lining; mueebiy Comi en eeged. portion mi ewd 1i fi e" 

